My brother music lessons for three months now. какое слово вместо точек?

My brother has take music lessons for three month now.

2. participation in this program is a unique experience for me. 3. water transport, in my opinion, is quite dangerous and unreasonably expensive. 4. in germany, the system is very well developed. 5. journalists write a lot and talk about the technological breakthrough of the chinese. 6. in the twenties of the last century, mankind dreamed of environmentally friendly modes of transport. 7. pollution of the world ocean occurs, including, and because of negligence of the person. 8. i usually get to work in twenty minutes, but today, due to traffic jams, it took me an hour and a half to do this. 9. most japanese are adherents of traveling by train. 10. more than 25% of those polled in large cities in the us can not refuse personal transport, even in difficult transport situations, since most of them suffer from a lack of time. 11. recently, several good articles appeared in the newspapers about the catastrophic ecological situation on the planet. 12. the population of the country showed great interest in the electric vehicle, although there was too little information. 13. recent research has shown that people use electronic gadgets very actively, which allows them to significantly save time.